128389090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{442721}}^1$

素因数の和:442757

約数の個数: 16

約数和(自身を含む): 239069880

約数和(自身を除く): 110680790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 442721, 885442, 2213605, 4427210, 12838909, 25677818, 64194545, 128389090]

約数ペア:

[(1, 128389090), (2, 64194545), (5, 25677818), (10, 12838909), (29, 4427210), (58, 2213605), (145, 885442), (290, 442721)]